Improvement in making screw-nuts



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FERDINAND RHE'YDT, or CHICAGO: ILLINOIS. Letters Patent. No. 85,399, dated December 29,186.8. s

IMPROVEMENT IN MAKING SCREW-NUTS.

The Schedule referred Ato in these Letters Patent and making part of the same,

To all whom it may concern Be it known that I, FERDINAND RHEYDT, of Ohicago, in the county of Cook, and State of Illinois, have invented a new and improved Machine for Making Nuts; and I do hereby declare that the following is a full, clear, and exact description thereof, which -will enable others skilled in the art tomake and use the same, reference being had to the accompanying drawings, forming part of this specification, in which- Figure l represents a side elevation, partly in section, of my improved nut-making machine.

Figure 2 is a plan or top view of the same.

Figure 3 is a detail transverse section of the same, taken on the plane ofthe line x :c iig. 2.

Figure 4 is a detail side view of the cutting-tool and its carriage. Y

Similar letters of reference indicate like parts.

' The object of this invention is to construct a machine on which'screw-nut blanks can be shaped on and cnt 'from prismatic bars, which have already the requisite hexagonal, cctagonal, or other desired cross-section ofthe The tedious and laborious process of forming the nuts between dies is thereby dispensed with, and neater work produced.

The invention consists in the .general arrangement of the machine, and more particularly in the applicaf tion and construction of the cutter, which is not only to sever the peiforated and shaped nut from the end' of the bar, but which also serves to round or bevel the edges of the face of the nut while thesame is' yet on the bar.

This cutter is fastened to a transversely-sliding snpport, and is itself longitudinally adjustable in said 'support, and can be turned therein.

Whenit is set obliqnely against the end of the rod from which the nuts are to be cut, its upper edge will serve'to bevel the edges of the end of the rod, while, when it is set at right angles to the saidA rod, it will serve to cut the nut from the rod.

A, in the drawing, represents a suitable metallic or other frame, which has a bed for the support vof a longitudinally sliding carriage, B, that is adjusted by means of pinion and rack, or by other equivalent means.

The carriage B is arranged upon the front part of the frame A.

In rear of it are', on the frame, two supports, a c, for a tubular spindle, C, which has the loose pulleys b, and which, by means of an auxiliary shaft, D, receives the requisite motion, the said auxiliary shaft being laterally adj nstable by an eccentric, c, as indicated in iig. 3.

Through the hollow spindle C is fitted a prismatic rod or bar, E, made of iron, or such other metal or material from which the nuts are to be made.

The rear end of the said bar E is fitted through a ring or rings, d, rolling in supports, c, on an extension, f, of the frame A.

The ring d has a polygonal aperture, corresponding to the cross-section of the bar E, so that 'the said ring l must revolve with the bar. A The object of the said ring or rings is to steady a long bar, and to prevent-it from vibrating.

The aperture of the hollow spindle is, ormay` also be, of the shape of the rod E, so that, as the spindle is revolved,- the rod will also be turned with it.

Longitudinal adjustment of the bar E is allowed,

projecting dovetail tenen, fi, and in front of that a short longitudinal tenon, j, as shown.

0n the tenon yi, or its equivalent, is fitted a small trausversely-sliding carriage, F, which is adjustable by means of-a screw, K, or otherwise, as desired.

In the' carriage F`is a groove, parallel to the bar E. In this groove stands a round pin, Gr,-from which a cutting-tool or chisel, H, with inclined cutting-edge. shown in fig. 4, projects.

g The pin G can be turned in the carriage F, and can be longitudinally adjusted in the4 groove o f the same, as well as with the carriage B, and transversely adjusted by means of the screw-K, or its equivalent.

VVlIen the pin G is turned so that the tool H is at right angles to the bar E, the saidtool is used to cut oli0 a portion of the bar, as much as is needed for the nut. This cutting is doie by gradually feeding the carriage against the revolving bar E.

Then the .tool H is set obliquely, as shown by red lines in iig. 2, it serves to bevel the edges of the bar,

Vas indicated, so as to produce the bevelled face of the nut.

On the tenon j, o1' its v equivalent, is ttedfa small.

longitudinally-sliding carriage, I, which is longitudinally adjustable by means of a sere lv, l, or its equivaf lent.

In the carriage I is held astationary bit, J, in line with the axis of the bar E.

WVhen the bit is, by means of the screw l, fed against the revolving bar E, it will bore a hole of the required diameter into the same, so as to produce perforated nut-blanks.

The tools H and J can operate simultaneously, and consequently the nuts will be rapidly made.

When six or eight 'nuts have been cut from the bar, it is movedibrward, and the operation is thus carried on until the whole bar has been used up, when another one is put into its place.

After a nut has been cut, the carriage B is moved towards the har, to bring the tools into the requisite arranged on the carriage B, substzmtially as herein new position. It is then clamped tothe frame A by shown and described, all operating as set forth.

Ineens of e set-screw, m. 2. The combination of the hollow spindle. C, ring d, The thickness of the nut is regulated by the adjustand rings g, with theV carriages B, F, and I, and tools ment of the pin G in or on the carriage. H and J, all made, arranged, and operating' substan- Hzwing thus described my invention, tielly as herein shown and described. I claim as new, and desire to secure by Letters FERDINAND RHEYDT. Patentv Witnesses: o l. The hollow spindle C, in combination with the NATHAN ALLEN, `adjustable cutting and boring-tools, H and J, that are AUSTIN D. STURTEYANT, 

